I am using this as a single servo setup in my Brushless E-Maxx. The torque this thing puts out is amazing. I've got HPI Super Mudders on Maximizer Beadlock rims, and this servo throws them around like nothing. At speed, it is quick enough to overturn the truck. Word of caution - If your BEC isn't strong enough, your receiver will brown out if you cycle the steering enough.

2 months shy of a year in my truggy (Tekno ET-48) as a steering servo this puppy has gotten REALLY sloppy (front tires are extremely "wobbly" due to the servo's core wiggling around). We will see how Savox takes care of me as a customer... but to be honest, a $100 servo should last longer than a year! I will update this review when I find out how the warranty process goes.
**UPDATE**
Savox has decided to replace my servo! Hopefully this will not happen again in the future!